| CornÉLie | | - | French | |
| Corneille | | kor-NAY | French (Archaic) | |
| Cornelia | | kawr-NE-lee-ah (German), kor-NE-lyah (Italian), kawr-NAY-lee-ah (Dutch), kər-NEE-lee-ə (English), kər-NEEL-yə (English) | German, Romanian, Italian, Dutch, English, Ancient Roman | |
| Cornelis | | - | Dutch | |
| Cornelius | | kər-NEE-lee-əs (English), kawr-NAY-lee-us (Dutch), kawr-NE-lee-uws (German) | Ancient Roman, English, Dutch, German, Biblical | |
| CorraidhÍN | | - | Ancient Irish | |
| Corrie | | KAWR-ee (English), KAWRH-ee (Dutch) | English, Dutch | |
| Cosette | | - | French, Literature | |
| Cosmas | | - | Ancient Greek (Latinized) | |
| Cosme | | - | Portuguese, French | |
| Cowessess | | - | Native American, Ojibwe | |
| Craig | | KRAYG | Scottish, English | |
| Crescens | | - | Late Roman, Biblical Latin | |
| Crispian | | - | English (Archaic) | |
| Crispinus | | - | Ancient Roman | |